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First cut at recycling space in btree indexes. Still some rough edges

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to fix, but it seems to basically work...
This commit is contained in:
Tom Lane
2003-02-23 06:17:13 +00:00
parent 27854915b9
commit 88dc31e3f2
8 changed files with 745 additions and 32 deletions
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8
src/include/access/nbtree.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: nbtree.h,v 1.65 2003/02/22 00:45:05 tgl Exp $
* $Id: nbtree.h,v 1.66 2003/02/23 06:17:13 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -118,6 +118,8 @@ typedef struct BTItemData
typedef BTItemData *BTItem;
#define CopyBTItem(btitem) ((BTItem) CopyIndexTuple((IndexTuple) (btitem)))
/*
* For XLOG: size without alignment. Sizeof works as long as
* IndexTupleData has exactly 8 bytes.
@ -434,6 +436,7 @@ extern Datum btvacuumcleanup(PG_FUNCTION_ARGS);
*/
extern InsertIndexResult _bt_doinsert(Relation rel, BTItem btitem,
bool index_is_unique, Relation heapRel);
extern Buffer _bt_getstackbuf(Relation rel, BTStack stack, int access);
extern void _bt_insert_parent(Relation rel, Buffer buf, Buffer rbuf,
BTStack stack, bool is_root, bool is_only);
@ -448,8 +451,10 @@ extern void _bt_relbuf(Relation rel, Buffer buf);
extern void _bt_wrtbuf(Relation rel, Buffer buf);
extern void _bt_wrtnorelbuf(Relation rel, Buffer buf);
extern void _bt_pageinit(Page page, Size size);
extern bool _bt_page_recyclable(Page page);
extern void _bt_metaproot(Relation rel, BlockNumber rootbknum, uint32 level);
extern void _bt_itemdel(Relation rel, Buffer buf, ItemPointer tid);
extern int _bt_pagedel(Relation rel, Buffer buf, bool vacuum_full);
/*
* prototypes for functions in nbtsearch.c
@ -488,7 +493,6 @@ extern BTItem _bt_formitem(IndexTuple itup);
/*
* prototypes for functions in nbtsort.c
*/
typedef struct BTSpool BTSpool; /* opaque type known only within nbtsort.c */
extern BTSpool *_bt_spoolinit(Relation index, bool isunique);